3v4l.org

run code in 300+ PHP versions simultaneously

@ 2021-01-09T12:07:48Z

<?php

$postcard = 'paccoi';
$car = 'coi';

$arr_postcard = str_split($postcard);
$arr_car = str_split($car);


function array_diff_once($array1, $array2) {
    foreach($array2 as $a) {
        $pos = array_search($a, $array1);
        if($pos !== false) {
            unset($array1[$pos]);
        }
    }

    return $array1;
}

$uncommon = count($arr_postcard) >= count($arr_car) ?  array_diff_once($arr_postcard,$arr_car) : array_diff_once($arr_car,$arr_postcard);

echo 'Letters not in common: ' . implode(' - ', $uncommon) . PHP_EOL;

function array_intersect_once($array1, $array2) {
    $array = [];
    foreach($array1 as $a) {
        $pos = array_search($a, $array2);
        if($pos !== false) {
            $array[] = $a;
        }
    }

    return $array;
}
$common = count($arr_postcard) >= count($arr_car) ?  array_intersect_once($arr_car,$arr_postcard) : array_intersect_once($arr_postcard,$arr_car);

echo 'Letters in common: ' . implode(' - ', $common) . PHP_EOL;

Output for 5.4.33, 5.6.11, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: Letters not in common: p - a - c Letters in common: c - o - i
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Letters not in common: p - a - c Letters in common: c - o - i
Output for 5.2.17: Parse error: syntax error, unexpected '[' in /in/lY755 on line 26
Process exited with code 255.
Output for 4.3.7: Parse error: parse error, unexpected '[' in /in/lY755 on line 26
Process exited with code 255.

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